I. Preparatory work

1. Work clothes, work shoes, working cap and heat insulating gloves must be worn when working;

2. Do a good job in process hygiene (including the cleaning of the interior of the laminator and the high-temperature cloth);

3. Confirm that panic button is in a normal state;

4. Check the circulating water level.

Second, the required materials, tools and equipment

1, lamination assembly 2, laminator 3, heat insulating gloves 4, tetrafluoroethylene cloth (high temperature cloth) 5, art knife 6, 1cm stationery tape 7, sweat cloth gloves 8, scalpel.

Third, the operating procedures

1. Check the position of the travel switch;

2. Start the laminator, set corresponding process parameters according to the process requirements, and raise the temperature to the set temperature;

3. Empty cycle once, constantly monitor whether the vacuum parameter changes normally, and confirm that the vacuum degree of the laminator meets the specified requirements;

4. Pressure test: spread a layer of fiber cloth, pay attention to the front and back, up and down cloth, and lift a component to be laminated;

5. Take down the flow chart, check the current and voltage values, and check whether the battery cells and bus bars in the assembly have obvious displacement, whether there are foreign objects, fragments and other undesirable phenomena, if so, return to the previous process;

6. Wear gloves and transport the laminated parts out of the storage place. During handling, do not squeeze the battery by hand (to prevent fragmentation) and keep it stable (to prevent the battery from shifting in the assembly);

7. Place the glass face of the module downwards and the outgoing line to the left in the middle of the laminator, and then cover it with a layer of fiber cloth (pay attention to make the front face of the fiber cloth face the module) for laminating operation;

8. Observe relevant parameters (temperature, vacuum degree, upper and lower chamber state) during lamination, pay special attention to whether the vacuum degree is normal, and record relevant parameters in the flow chart.

9. After the bonding operation is completed, automatically open the upper cover of the bonding machine to take out the components (or output them automatically);

10. After cooling, take out the fiber cloth and clean it;

1 1. Check that the parts meet the process quality requirements and cool to a certain extent before trimming; (The glass face is downward, and the cutter is inclined about 45. Pay attention to keep the knife sharp to prevent the edge of the backboard from being pulled);

12. After passing the inspection, put it in the specified location. If it is unqualified, isolate it and wait for rework.

Pre-lamination inspection

Whether the serial number in the 1. component is consistent with the serial number in the circulation slip;

2. Whether the current and voltage values on the flow chart are not filled in or measured, and whether there are errors or differences. ;

3. The positive and negative electrodes derived from the element (generally Zuo Zheng is negative);

4. The length of the lead-out wire should not be too short (to prevent it from being loaded into the junction box) and should not be discounted;

5. Whether 5.TPT has scratches, scratches, folds and pits, whether the glass is covered safely and whether the front and back sides are correct;

6. The front and back of 6.EVA, dimensions, cracks and dirt;

7. The front and back of the glass, bubbles, scratches, etc. ;

8. Residual tin slag, welding, chips, missing corners, hairs, black spots, fibers, interconnecting strips or bus bars in the assembly;

9. Whether the isolation TPT is in place and whether the bus and interconnection lines are trimmed;

10. Spacing (battery to battery, battery to glass edge, string to string, battery to bus, bus to bus, bus to glass edge, etc. )

Lamination observation

Open the upper cover of the laminator, the vacuum gauge of the upper cavity is -0. 1MPa, and the vacuum gauge of the lower cavity is 0.00MPa, and confirm the temperature and parameters.

Feeding after meeting the process requirements; Click down after the component completely enters the laminator; Vacuum gauges are needed for both the upper and lower vacuum chambers.

Reach -0. 1MPa (vacuumizing) (if any abnormality is found, press "Emergency Stop", manually take out the component, and then press another component after troubleshooting), wait for the set time to pass, and then inflate the upper cavity (indicated by the upper cavity vacuum gauge) to 0.00MPa.

The vacuum gauge in the lower cavity is still kept at -0. 1MPa to start lamination. After the lamination time is over, the lower chamber is deflated (the vacuum gauge of the lower chamber changes

0.00MPa, the upper cavity vacuum gauge is still 0.00MPa). After the deflation time is over, open the cover (the upper chamber vacuum gauge becomes

-0.65438+/-0 MPa, the vacuum gauge of the lower chamber remains unchanged) discharging; Then the tetrafluoroethylene cloth automatically returns to the original point.

Check again after lamination.

1.TPT whether there are scratches and abrasions, whether the glass cover is safe, whether the front and back sides are correct, whether it is flat, whether there are wrinkles and whether there are concave and convex phenomena;

2. Tin slag, welds, fragments, missing corners, hair, fibers, etc. In assembly;

3. Whether the isolation TPT is in place and whether the bus bar and interconnection bar are cut neatly;

4. Spacing (battery to battery, battery to glass edge, string to string, battery to bus, bus to bus, bus to glass edge, etc.). );

5. Whether the color difference and negative electrode welding are serious;

6. Whether the interconnection bars are yellow and whether the bus bars are displaced;

7. Whether there are bubbles or vacuum bubbles in the assembly;

8. Whether there is a short circuit caused by the overlap of conductor foreign bodies between two series of battery cells;

Fourth, the quality requirements

1.TPT without scratches, positive and negative;

2. There are no foreign bodies such as hair and fiber, and there are no bubbles and fragments in the assembly;

3. There is no obvious displacement of the battery cells inside the module, and the gap is even, and the minimum spacing is not less than1mm;

4. There is no obvious bulge or depression on the back of the component;

5. The spacing between bus bars of components should not be less than 2mm；;

6. The gel rate of EVA shall not be less than 75%, and each batch of EVA shall be measured twice.

Verb (abbreviation of verb) matters needing attention

1. The laminator shall be operated by special personnel, and other personnel shall not enter the red;

2. Pay attention to safety when pruning;

3. There is no residual EVA and impurities on the glass fiber cloth;

4. The four corners of tempered glass are fragile, so be careful to protect them when lifting;

5. Lay the component flat, and don't press the battery with your fingers;

6. After putting into the assembly, quickly laminate it, and quickly take it out after opening the cover;

7. Check whether the cooling water level, travel switch and vacuum pump are normal;

8. Distinguish between picture state and control state to prevent misoperation;

9. In case of abnormal situation, press "Emergency Stop" to exit. After troubleshooting, first restore the vacuum of the lower cavity;

10. After the deflation speed of the lower cavity is set, it cannot be changed at will. It can only be changed with the consent of the equipment supervisor, and the deflation time of the lower chamber can be adjusted accordingly. Lamination parameters are not determined by technology and cannot be changed at will.

1 1. Upper cavity rubber is a valuable and consumable product, so it should be carefully checked before feeding to avoid sharp tools, irons and other things from being mixed with the scratched rubber;

12. Before opening the lid, check whether the inflation of the lower box is completed, otherwise it is not allowed to open the lid to avoid damaging the equipment;

13. After changing the parameters, it is necessary to carry out idling cycle and test a component.

Assembly frame

I. Preparatory work

1. Wear work clothes, work shoes and working cap when working.

2. Do a good job in process hygiene, clean and tidy countertops, and create a clean and orderly framing environment.

Second, the required materials, tools and equipment

1, laminated battery module 2, aluminum frame 3, silica gel 4, alcohol 6, adhesive tape 7, junction box 8, pneumatic glue gun 9, rubber hammer 10, framer1,scissors 12, tweezers/kloc-

Third, the operating procedures

1. Select the corresponding materials and aluminum profiles according to the drawings, check them, screen out the aluminum profiles that do not meet the requirements, and put them in the designated position;

2. Clean the surface of the laminated battery assembly, check the previous procedure at the same time, and return the unqualified battery assembly to the previous procedure for rework;

3. Connect the edge profile and E profile at right angles with screws (the material will connect the long profile and the short profile at right angles, and the flat-fell seam is less than 0.5mm) to ensure the smoothness of the joint;

4. A proper amount of silica gel is evenly injected into the groove of the aluminum alloy frame;

5. Embedding the assembly into an aluminum frame filled with silica gel and compacting it;

6. Move the assembly to the rack (close to one side, close the pneumatic valve and fix it);

7. Fix the remaining two corners of the aluminum frame with screws (materials), and adjust the distance between the glass and the frame and the diagonal length of the frame;

8. Glue the gap in front evenly with a glue gun;

9. Remove the silica gel overflowing from the surface of the assembly and clean it;

10. Open the pneumatic valve, turn over the assembly, and then fix the assembly;

1 1. Press the four corners of TPT with appropriate force to make the glass surface close to the inner wall of aluminum alloy frame, and pay attention to the TPT surface when pressing.

12. Glue the gap on the back of the component (around) with a glue gun;

13. Fix the junction box on the back of the assembly with silica gel according to the drawing requirements, and check whether the diode is connected backwards;

14. Self-check the frame assembly (whether there are any missing stickers, bubbles or gaps);

15. After meeting the requirements, record it on the "Process Flow Sheet", place the parts in the designated area and flow into the next process.

Fourth, the quality requirements

1. The diagonal error of aluminum alloy frame is less than 2mm, and the error of 1m is less than 3mm；;

2. The outer frame shall be installed smoothly, straightly and without scratches;

3. The distance between the battery cells and the frame in the assembly is equal;

4. There is no visible gap between aluminum frame and silica gel;

5. The root of the lead in the junction box must be sealed with silica gel, the junction box has no cracks and cracks, the accessories are complete, the thickness of silica gel at the bottom of the junction box is 1 ~ 2mm, the junction box is accurately positioned, and the four sides are parallel;

6. The height difference at the back seam of the aluminum alloy frame of the module is less than 0.5 mm; ;

7. The gap at the back seam of the assembled aluminum alloy frame is less than 65438±0mm；;

8. The allowable deviation of the spacing between the four mounting holes of the aluminum alloy frame is 0.5mm. ..

Verb (abbreviation of verb) matters needing attention

1. Be careful not to touch the four corners of frameless components.

Pay attention to keep your hands clean.

3. When lifting the parts loaded with aluminum frames from the turnover table to the frame loader, grasp the four corners to prevent the parts from slipping off the frame.